LNK3207P

AC DC Converters, Offline Switchers Overview

The LNK3207P is a LinkSwitch-TNZ AC/DC converter from Power Integrations, designed for non-isolated offline applications. It integrates a 725V MOSFET and operates at a fixed switching frequency of 66 kHz. The device supports Buck, Buck-Boost, and Flyback topologies with a maximum duty cycle of 73%. It accepts an input voltage range from 85 VAC to 265 VAC and delivers up to 360 mA output current with a maximum output voltage of 50 V. Quiescent supply current is 190 uA. It functions within a temperature range of -40°C to +150°C and is housed in a PDIP-8C-7 through-hole package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 725V MOSFET for compact non-isolated power conversion
• Supports multiple topologies including Buck, Buck-Boost, and Flyback configurations
• Operates at a fixed 66 kHz switching frequency to minimize electromagnetic interference

AC DC Converters, Offline Switchers Applications

• Non-isolated AC/DC power supplies
• Buck converter designs
• Flyback converter implementations

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'P' confirms the PDIP-8C-7 through-hole package variant. Confirm that the application requires a non-isolated topology, as this component does not provide galvanic isolation. Ensure the design accommodates the specified 725V drain-source voltage rating and 360 mA output current limits under all operating conditions.

AC DC Converters, Offline Switchers Selection Notes

Select the LNK3207P when a non-isolated solution is required for AC/DC conversion. Compare against other LinkSwitch-TNZ variants based on required output current and quiescent power consumption. Consider the PDIP-8C-7 package if through-hole assembly is mandated by the manufacturing process or mechanical constraints.

AC DC Converters, Offline Switchers Part Context

The LNK3207P belongs to the LinkSwitch-TNZ family, which targets low-power offline converters. This series integrates the controller, high-voltage switch, and protection features into a single monolithic IC. The LNK3207P specifically addresses applications requiring moderate output currents without the need for isolation transformers.

AC DC Converters, Offline Switchers Replacement Considerations

The LNK3207G-TL serves as a surface-mount alternative within the same electrical specification family.